Air Miles Calculator

Distance between Rock Springs, WY (RKS) and St Louis, MO (STL)

Flight distance from Rock Springs to St Louis (Southwest Wyoming Regional Airport – St. Louis Lambert International Airport) is 1007 miles / 1620 kilometers / 875 nautical miles. Estimated flight time is 2 hours 24 minutes.

Driving distance from Rock Springs (RKS) to St Louis (STL) is 1122 miles / 1806 kilometers and travel time by car is about 18 hours 27 minutes.

Map of flight path and driving directions from Rock Springs to St Louis.

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and St. Louis Lambert International Airport (STL).

How far is St Louis from Rock Springs?

There are several ways to calculate distances between Rock Springs and St Louis. Here are two common methods:

Vincenty's formula (applied above)
  • 1006.668 miles
  • 1620.075 kilometers
  • 874.771 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 1004.293 miles
  • 1616.252 kilometers
  • 872.706 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

Airport information


A Southwest Wyoming Regional Airport
City: Rock Springs, WY
Country: United States Flag of United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″W

B St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

Time difference and current local times

The time difference between Rock Springs and St Louis is 1 hour. St Louis is 1 hour ahead of Rock Springs.

Time Difference

Rock Springs, WY

 MDT

St Louis, MO

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 151 kg (333 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → St Louis (STL).

Distance:
1007
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1007

Round trip?